Voice API for Windows Operating Systems Library Reference — November 2003 99
return the current activity on the channel — ATDX_LINEST( )
ATDX_LINEST( )return the current activity on the channel
!
!!
!Description
The ATDX_LINEST( ) function returns the current activity on the channel specified in chdev. The
information is returned in a bitmap.
Possible return values are the following:
RLS_DTMF
DTMF signal present
RLS_HOOK
Channel is on-hook
RLS_LCSENSE
Loop current not present
RLS_RING
Ring not present
RLS_RINGBK
Audible ringback detected
RLS_SILENCE
Silence on the line
!
!!
!Cautions
None.
Name: long ATDX_LINEST(chdev)
Inputs: int chdev •valid channel device handle
Returns: current line status of channel if successful
AT_FAILURE if error
Includes: srllib.h
dxxxlib.h
Category: Extended Attribute
Mode: synchronous
Platform: Springware
Parameter Description
chdev specifies the valid channel device handle obtained when the channel was opened
using dx_open( )